Blood Alcohol Calculator
Estimate your Blood Alcohol Concentration (BAC) using the Widmark formula with jurisdiction-aware legal limits.
Your drinks & body
Updates as you typeBody
Gender ?
Body weight
—
lbs
Time since first drink ?
—
hours
Food in stomach ?
Drinks
Volume unit
Quick add
Tap to append a drink
Jurisdiction (legal limit)
Driving limit ?
BAC over time
From first drink until sober
Estimated BAC
Legal limit
Now